/*
 * Copyright 2006 Matt Jensen
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package org.spectaql;

import org.spectaql.metadata.EntityMetadata;

/**
 * <p>
 * <code>ProxyInstantiationStrategy</code> defines the public interface to an object which creates proxy objects for use
 * as matcher entities and property reference resolvers.
 * </p>
 */
public interface ProxyInstantiationStrategy
{
    /**
     * <p>
     * Create a proxy for an entity class which implements a single internal interface, for which invocations are
     * delegated to a given handler object. The handler object must implement exactly one interface; this interface is
     * mixed in to the proxy.
     * </p>
     *
     * @param entityMetadata metadata for the entity class which will be proxied. 
     * @param internalHandler the internal handler object, which must implement exactly one interface.
     * @return {@link Object} proxy instance.
     */
    <T> T createProxy(EntityMetadata entityMetadata, Object internalHandler);
}
